128460340

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{121189}}^1$

素因数の和:121251

約数の個数: 24

約数和(自身を含む): 274858920

約数和(自身を除く): 146398580

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 121189, 242378, 484756, 605945, 1211890, 2423780, 6423017, 12846034, 25692068, 32115085, 64230170, 128460340]

約数ペア:

[(1, 128460340), (2, 64230170), (4, 32115085), (5, 25692068), (10, 12846034), (20, 6423017), (53, 2423780), (106, 1211890), (212, 605945), (265, 484756), (530, 242378), (1060, 121189)]